CN210920052U - Oil seepage prevention circulating lubricating device for speed reducer of pumping unit - Google Patents
Oil seepage prevention circulating lubricating device for speed reducer of pumping unit Download PDFInfo
- Publication number
- CN210920052U CN210920052U CN201921455712.7U CN201921455712U CN210920052U CN 210920052 U CN210920052 U CN 210920052U CN 201921455712 U CN201921455712 U CN 201921455712U CN 210920052 U CN210920052 U CN 210920052U
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- oil
- box body
- hole
- reducer
- return hole
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Abstract
The utility model relates to an oil seepage prevention circulating lubrication device for a reducer of an oil pumping unit, which comprises a reducer box body (1), a sealing end cover (2), a step sealing ring (3), a pressing plate (4), an oil extractor (5), an oil receiving oil distributor (6) and a screw plug (7), wherein the bottom of the reducer box body (1) is in a step shape, the sealing end cover (2) is arranged on the outer side surface of the reducer box body (1), the step sealing ring (3) is arranged on the inner section of a through hole (23), the oil extractor (5) is arranged on the two side surfaces of a driven gear, and the oil receiving oil distributor (6) is arranged above a driven shaft, the utility model has the advantages of simple and novel structure, practical function, continuous, effectiveness, full and proper active circulating lubrication to the bearing, which is beneficial to the bearing lubrication of the reducer of the oil pumping unit under the low-stroke work, and a step sealing ring and an oil storage backflow structure are added, so that the oil leakage phenomenon is avoided.
Description
Technical Field
The utility model relates to a beam-pumping unit reduction gear, concretely relates to prevention of seepage oil circulating lubrication device for beam-pumping unit reduction gear.
Background
At present, the common oil field pumping unit speed reducers generally adopt two-stage transmission split-flow type double-circular-arc gear speed reducers, a driving shaft and a left-right rotating gear are a pair of gears which are meshed with each other at a high speed stage, the driving shaft is a shaft tooth herringbone gear, and the left-right rotating gear is divided into a left-hand gear and a right-hand gear. The lubricating mode of the oil field pumping unit speed reducer generally adopts an oil immersion splashing lubricating mode, namely lubricating oil is injected into a box body, the oil surface is immersed by a driven gear and a left-right rotating gear at a certain height, the lubricating oil is extruded and splashed by utilizing the rotating motion of the gears, and the required lubricating oil is provided for the bearing of the speed reducer. When the stroke frequency of the oil pumping unit is higher than 3 revolutions per minute, the rotating speed of the driving shaft can reach about 600 revolutions per minute, because part of the tooth surfaces of the left-handed gear and the right-handed gear are immersed in lubricating oil, when the left-handed gear and the right-handed gear rotate at high speed, a large amount of lubricating oil can be adhered to the tooth surfaces, and the driving shaft and the left-handed gear and the right-handed gear are helical gears, the lubricating oil on the tooth surfaces splashes into the bearing along the direction of the helical angle under extrusion force generated by meshing, so that the lubrication. However, most oil wells in the current oil field are thick oil type oil wells, the requirements of most oil fields cannot be met according to the rated rotating speed of a reducer of a pumping unit in the oil field, most pumping units operating in the oil field work between 1 revolution per minute and 3 revolutions per minute at present, the reduction of the stroke frequency of the pumping unit causes the reduction of the rotating speed of a driving shaft and left and right rotary gears, the reduction of the rotating speed causes the extrusion force of the driving shaft and the left and right rotary gears to be reduced, so that lubricating oil cannot be extruded and splashed into a bearing, and the requirement for lubricating the bearing cannot be met. Meanwhile, due to insufficient bearing lubrication, the friction force of a transmission shaft is increased, the temperature is increased, the abrasion and the aging of a sealing ring are accelerated, and oil leakage of a reducer of the pumping unit is caused.
Disclosure of Invention
An object of the utility model is to solve the not enough of prior art existence, provide a prevention of seepage oil circulation lubricating arrangement for beam-pumping unit reduction gear, simple structure is novel, and the function is practical, and sustainable effective, fully suitably carry out the initiative circulation lubrication to the bearing, is favorable to beam-pumping unit reduction gear bearing lubrication under the work of low stroke number, is favorable to improving bearing life, increases the step sealing ring and holds oily backflow structure, has stopped the oil leakage phenomenon.
The utility model adopts the technical proposal that: an oil seepage prevention circulating lubrication device for a reducer of an oil pumping unit comprises a reducer box body 1, a sealing end cover 2, a step sealing ring 3, a pressing plate 4, an oil extractor 5, an oil receiving and separating device 6 and a screw plug 7, wherein the bottom of the reducer box body 1 is in a step shape, an inclined oil return hole 11 is arranged below the outer section of a bearing hole of the reducer box body 1, the lower end of the inclined oil return hole 11 is communicated with an inner cavity of the reducer box body 1, an oil storage tank 12 is arranged on the inner section of the bearing hole of the reducer box body 1, the inner groove edge of the oil storage tank 12 is higher than the inner circular surface of the bearing hole, the sealing end cover 2 is arranged on the outer side surface of the reducer box body 1 and is in a step cylinder shape, the sealing end cover 2 comprises a positioning sealing cylinder 21 and a fixed mounting cylinder 22, a through hole 23 is arranged in the middle of the, the step end face of the fixed installation cylinder 22 is in close contact with the outer side face of the speed reducer case 1, the end face of the positioning sealing cylinder 21 is provided with a circular groove 24, the circular groove 24 is provided with an outer oblique oil return hole 25, the middle section of the through hole 23 is provided with an annular oil storage groove 26, the annular oil storage groove 26 is provided with an inner oblique oil return hole 27, the outer oblique oil return hole 25 is communicated with the inner oblique oil return hole 27, the outer oblique oil return hole 25 and the inner oblique oil return hole 27 are respectively communicated with the oblique oil return hole 11, the outer section of the through hole 23 is provided with a lip-shaped sealing ring and a felt sealing ring, the step sealing ring 3 is arranged on the inner section of the through hole 23, the outer circle of the step sealing ring 3 is provided with a labyrinth sealing groove 31, the two adjacent faces of the step sealing ring 3 are inclined planes, the included angle of the two adjacent faces of the step sealing, the oil extractor 5 comprises a mounting piece 51 and an oil extraction bucket 52, the mounting piece 51 is connected with the side surface of the driven gear, the oil extraction bucket 52 is a trapezoidal container, the top surface of the oil receiving and distributing device is provided with an opening 53, the opening 53 faces to the driven shaft, the oil receiving and distributing device 6 is arranged above the driven shaft, the oil receiving and distributing device 6 comprises an oil receiving and distributing disc 61 and a fixing plate 62, the oil receiving and distributing disc 61 is provided with an oil receiving disc and three oil distributing ports, the fixing plate 62 is respectively arranged above the oil distributing ports, the fixing plate 62 is connected with the inner side wall of the reducer box body 1, the oil distributing ports extend into the oil storage tank 12, the screw plug 7 is arranged at the bottom of the reducer box body 1, with 1 threaded connection of reduction gear box, the head of plug screw 7 is equipped with cylindrical magnet, and the diameter of cylindrical magnet is less than the diameter of 7 screw thread sections of plug screw, and cylindrical magnet extends to in the inner chamber of reduction gear box 1, is equipped with sealed the pad between plug screw 7 and the reduction gear box 1.
Compared with the prior art, the utility model following beneficial effect has: simple structure is novel, and the function is practical, and sustainable effective, fully suitably carry out the initiative circulation lubrication to the bearing, is favorable to pumping unit reduction gear bearing lubrication under the work of low stroke frequency, is favorable to improving bearing life, increases the step sealing ring and holds oily backflow structure, has stopped the oil leakage phenomenon.
Drawings
Figure 1 is a schematic structural diagram of the present invention,
figure 2 is a schematic structural view of the end cap of the present invention,
FIG. 3 is a schematic structural view of the middle step sealing ring of the present invention,
figure 4 is a schematic structural diagram of the oil extractor of the present invention,
FIG. 5 is a schematic structural view of the oil receiving and separating device of the present invention,
fig. 6 is a top view of fig. 5.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in fig. 1, 2, 3, 4, 5 and 6, an oil leakage prevention circulating lubrication device for a reducer of an oil pumping unit comprises a reducer case 1, a sealing end cover 2, a step sealing ring 3, a pressing plate 4, an oil extractor 5, an oil receiving and separating device 6 and a screw plug 7, wherein the bottom of the reducer case 1 is in a step shape, an inclined oil return hole 11 is arranged below the outer section of a bearing hole of the reducer case 1, the lower end of the inclined oil return hole 11 is communicated with the inner cavity of the reducer case 1, an oil storage tank 12 is arranged on the inner section of the bearing hole of the reducer case 1, the inner groove edge of the oil storage tank 12 is higher than the inner circular surface of the bearing hole, the sealing end cover 2 is arranged on the outer side surface of the reducer case 1 and is in a step cylindrical shape, the sealing end cover 2 comprises a positioning sealing cylinder 21 and a fixed mounting cylinder 22, a through hole 23 is arranged in the middle of the sealing end cover 2, the outer circular surface, the step end face of the fixed installation cylinder 22 is in close contact with the outer side face of the speed reducer case 1, the end face of the positioning sealing cylinder 21 is provided with a circular groove 24, the circular groove 24 is provided with an outer oblique oil return hole 25, the middle section of the through hole 23 is provided with an annular oil storage groove 26, the annular oil storage groove 26 is provided with an inner oblique oil return hole 27, the outer oblique oil return hole 25 is communicated with the inner oblique oil return hole 27, the outer oblique oil return hole 25 and the inner oblique oil return hole 27 are respectively communicated with the oblique oil return hole 11, the outer section of the through hole 23 is provided with a lip-shaped sealing ring and a felt sealing ring, the step sealing ring 3 is arranged on the inner section of the through hole 23, the outer circle of the step sealing ring 3 is provided with a labyrinth sealing groove 31, the two adjacent faces of the step sealing ring 3 are inclined planes, the included angle of the two adjacent faces of the step sealing, the oil extractor 5 comprises a mounting piece 51 and an oil extraction bucket 52, the mounting piece 51 is connected with the side surface of the driven gear, the oil extraction bucket 52 is a trapezoidal container, the top surface of the oil receiving and distributing device is provided with an opening 53, the opening 53 faces to the driven shaft, the oil receiving and distributing device 6 is arranged above the driven shaft, the oil receiving and distributing device 6 comprises an oil receiving and distributing disc 61 and a fixing plate 62, the oil receiving and distributing disc 61 is provided with an oil receiving disc and three oil distributing ports, the fixing plate 62 is respectively arranged above the oil distributing ports, the fixing plate 62 is connected with the inner side wall of the reducer box body 1, the oil distributing ports extend into the oil storage tank 12, the screw plug 7 is arranged at the bottom of the reducer box body 1, with 1 threaded connection of reduction gear box, the head of plug screw 7 is equipped with cylindrical magnet, and the diameter of cylindrical magnet is less than the diameter of 7 screw thread sections of plug screw, and cylindrical magnet extends to in the inner chamber of reduction gear box 1, is equipped with sealed the pad between plug screw 7 and the reduction gear box 1.
The bottom of the reducer box body 1 is step-shaped, a deep cavity and a shallow cavity are formed, the deep cavity corresponds to the left-right rotating driven gear, the shallow cavity corresponds to the driving shaft gear, lubricating oil is injected into the interior of the reducer box body 1, the left-right rotating gear and the driving shaft gear are fully and properly infiltrated at the deep cavity and the shallow cavity, and therefore the gears are fully and properly infiltrated, lubrication and cooling are facilitated, lubricating oil is saved, and energy conservation and environmental protection are facilitated; six oil extractors 5 are uniformly and fixedly arranged on a driven gear and rotate along with the rotation of the driven gear to lift lubricating oil, an oil lifting bucket 52 is a trapezoid-shaped container, an opening 53 is formed in the top surface of the oil lifting bucket, when the oil extractors 5 gradually rotate to a low position, the lubricating oil flows into the oil lifting bucket 52 through the opening 53 along with the immersion of the driven gear in the lubricating oil, when the oil extractors 5 gradually rotate to a high position, the lubricating oil gradually flows out from the opening 53, the oil lifting bucket 52 is the trapezoid-shaped container and can increase the lifting height and lifting amount so as to be beneficial to the lifting of the lubricating oil, an oil receiving and distributing device 6 is arranged above a driven shaft, a fixing plate 62 is connected with the inner side wall of a speed reducer box 1, an oil distributing port extends into the oil storage tank 12, the lifted lubricating oil flows out from the opening 53 and flows into an oil receiving disc of the oil distributing disc 61 and flows into the oil storage tank 12 in a, the inner groove edge of the oil storage tank 12 is higher than the inner circle surface of the bearing hole, so that lubricating oil can flow into the bearing to continuously, effectively, fully and properly lubricate the bearing, and the lubricating oil flows back to the interior of the reducer case 1 through the outer oblique oil return hole 25 and the oblique oil return hole 11, thereby realizing the active circulation lubrication of the reducer bearing of the pumping unit; the step sealing ring 3 is arranged on the inner section of the through hole 23, a labyrinth sealing groove 31 is arranged on the excircle of the step sealing ring 3 to form a labyrinth sealing structure, two adjacent surfaces of the step sealing ring 3 are inclined surfaces, the included angle between the two adjacent surfaces of the step sealing ring 3 is an acute angle, the leakage contact area and the contact time of lubricating oil are reduced, the leakage of the lubricating oil is favorably prevented, a small amount of leaked lubricating oil flows into the annular oil storage groove 26 and flows back to the inside of the reducer box body 1 through the inner inclined oil return hole 27 and the inclined oil return hole 11, a lip-shaped sealing ring and a felt sealing ring are arranged on the outer section of the through hole 23 to form a packing sealing structure, the inner labyrinth sealing, the middle oil storage backflow and the outer packing sealing are added; the plug screw 7 is installed in reduction case 1's bottom, and the head of plug screw 7 is equipped with cylinder magnet, and cylinder magnet extends to reduction case 1's inner chamber, and plug screw 7 plays the effect of the tight sealed pine oil drain of unscrewing of revolving, and the cylinder magnet is adsorbable in reduction case 1 because the iron impurity that the friction produced can clean lubricating oil, is favorable to improving bearing life.
Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (1)
1. An oil seepage prevention circulating lubrication device for a reducer of an oil pumping unit is characterized by comprising a reducer box body (1), a sealing end cover (2), a step sealing ring (3), a pressing plate (4), an oil extractor (5), an oil receiving and distributing device (6) and a screw plug (7), wherein the bottom of the reducer box body (1) is in a step shape, an inclined oil return hole (11) is arranged below the outer section of a bearing hole of the reducer box body (1), the lower end of the inclined oil return hole (11) is communicated with an inner cavity of the reducer box body (1), an oil storage tank (12) is arranged on the inner section of the bearing hole of the reducer box body (1), the inner groove edge of the oil storage tank (12) is higher than the inner circular surface of the bearing hole, the sealing end cover (2) is arranged on the outer side surface of the reducer box body (1), the outer appearance of the sealing end cover is in a step cylindrical shape, the sealing end, the middle of the sealing end cover (2) is provided with a through hole (23), the outer circular surface of the positioning sealing cylinder (21) is in close contact with a bearing hole of the speed reducer box body (1), the step end surface of the fixed mounting cylinder (22) is in close contact with the outer side surface of the speed reducer box body (1), the end surface of the positioning sealing cylinder (21) is provided with a circular groove (24), the circular groove (24) is provided with an outer oblique oil return hole (25), the middle section of the through hole (23) is provided with an annular oil storage groove (26), the annular oil storage groove (26) is provided with an inner oblique oil return hole (27), the outer oblique oil return hole (25) is communicated with the inner oblique oil return hole (27), the outer oblique oil return hole (25) and the inner oblique oil return hole (27) are respectively communicated with the oblique oil return hole (11), the outer section of the through hole (23) is provided with a lip-shaped sealing ring and a felt, the labyrinth seal groove (31) is arranged on the excircle of the step seal ring (3), two adjacent surfaces of the step seal ring (3) are inclined planes, the included angle between the two adjacent surfaces of the step seal ring (3) is an acute angle, the pressing plate (4) is fixedly installed on the outer end face of the seal end cover (2), the oil extractor (5) is arranged on two side faces of the driven gear, the oil extractor (5) comprises an installation sheet (51) and an oil extraction hopper (52), the installation sheet (51) is connected with the side face of the driven gear, the oil extraction hopper (52) is a trapezoid-shaped container, the top face of the oil extraction hopper is provided with an opening (53), the opening (53) faces towards the driven shaft, the oil receiving oil distributor (6) is arranged above the driven shaft, the oil receiving distributor (6) comprises an oil receiving plate (61) and a fixing plate (62), the oil receiving plate (61) is provided with an oil receiving plate and three oil distributing plates, and the fixing, fixed plate (62) are connected with the inside wall of reduction case (1), divide in the oil mouth extends to oil storage tank (12), install in the bottom of reduction case (1) plug screw (7), with reduction case (1) threaded connection, the head of plug screw (7) is equipped with cylindrical magnet, the diameter of cylindrical magnet is less than the diameter of plug screw (7) screw thread section, cylindrical magnet extends to in the inner chamber of reduction case (1), be equipped with sealed the pad between plug screw (7) and reduction case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921455712.7U CN210920052U (en) | 2019-08-31 | 2019-08-31 | Oil seepage prevention circulating lubricating device for speed reducer of pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921455712.7U CN210920052U (en) | 2019-08-31 | 2019-08-31 | Oil seepage prevention circulating lubricating device for speed reducer of pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210920052U true CN210920052U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921455712.7U Expired - Fee Related CN210920052U (en) | 2019-08-31 | 2019-08-31 | Oil seepage prevention circulating lubricating device for speed reducer of pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210920052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211988A (en) * | 2020-09-03 | 2021-01-12 | 河北华丰能源科技发展有限公司 | Speed reducer with oil leakage prevention function |
-
2019
- 2019-08-31 CN CN201921455712.7U patent/CN210920052U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211988A (en) * | 2020-09-03 | 2021-01-12 | 河北华丰能源科技发展有限公司 | Speed reducer with oil leakage prevention function |
| CN112211988B (en) * | 2020-09-03 | 2022-01-14 | 河北华丰能源科技发展有限公司 | Speed reducer with oil leakage prevention function |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 Termination date: 20210831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |